Question

The points A (1, 3) and C (5, 1) are the opposite vertices of rectangle. The equation of line passing through other two vertices and of gradient 2, is

• A. 2x + y – 8 = 0
• B. 2x – y – 4 = 0
• C. 2x – y + 4 = 0
• D. 2x + y + 7 = 0

Answer 1

The correct option is B 2x – y – 4 = 0

Midpoint $\equiv (3,2)$. Equation is 2x-y-4=0